Adelaide City Council is expected to start evicting campers from the parklands next month.

Councillors have voted to issue notices giving campers up to seven days to leave the parklands.

The first notices will be issued next month, but Lord Mayor Stephen Yarwood said the council would not be taking a big stick approach.

"We understand it's a sensitive issue. We certainly want to be respectful in the way that we go about this," he said.

"Council now realistically has a zero tolerance of long-term camping in the parklands.

"It's not an acceptable outcome."

Mr Yarwood said there were safety and other issues for not letting people stay in the parklands for the long term.

"People sleeping in the parklands do not have access to proper sanitary facilities, [they] experience exposure to weather, can be at risk of violence and may also have medical and/or mental health issues that require professional attention," he said.

"Council also has a responsibility to ensure that city streets, squares and parklands are welcoming and safe places for all to enjoy."

Gwen Moore from a community lobby group supporting homeless people said the ban would be fought and individual councillors targeted.

"I thought the council might step back and listen and talk to community service agencies and learn more about the effect of what they were doing," she said.

"We hope they will open their eyes and their ears and listen to us. We intend to contact each member individually and invite them to come and visit some of the services.

"The people who are in the parklands at this point in time are either Aboriginal people travelling through from the [APY] Lands, who will only be there for a short period of time anyway, or people who have multiple issues that prevent them from being housed or sustaining housing."

The council has cited as a motivation its desire to force the State Government to find more accommodation for the homeless.